In the case of the proto-Okinawan chiefdoms, this was much earlier, and ties in with shared migration patterns of Okinawans and Austronesian areas like the Philippines stretching back to the neolithic period.

In the course of time, shipwrecked Japanese sailors, pirate traders, and immigrants settled in the Philippines and intermarried with the early Filipinos.

[15]Precolonial Philippines had a rich pottery tradition as verified by the finds at Ayub Cave in South Cotabato and other parts of the archipelago.

These were highly sought after by Japanese traders in the 16th century Nanban trade and remain as valuable antique heirlooms in modern Japan.

They were prized for their simplicity and rough, often uneven design, epitomizing the traditional Japanese aesthetics of wabi-sabi ("perfection in imperfection").

[16] The Tokiko calls the Rusun and Namban jars, Ru-sun tsukuru or Lu-sung ch'i (in Chinese), which simply means "made in Luzon."

These Rusun jars, which had rokuru (wheel mark), were said to be more precious than gold because of its ability to act as tea canisters and enhance the fermentation.

In the 15th century AD, tea-jars were brought by the shōguns to Uji in Kyoto from the Philippines which was used in the Japanese tea ceremony.

[17][18][19][20] The Spanish historian Antonio de Morga in his Sucesos de la Islas Filipinas (1609) described Rusun jars as thus:[21] In this island of Luzon, especially in the provinces of Manila, Pampanga, Pangasinan and Ylocos the natives have ancient earthenware jars (tibores) which are brown in color and not especially attractive to look at.

The Japanese seek them and think highly of them, for they have discovered that the root [sic] of a certain plant called cha (tea), which the kings and lords of Japan drink hot, both as a refreshment and medicine, can best be kept and preserved in these jars.

Hence throughout Japan these jars are regarded highly as being the most precious jewels of their inner rooms and chambers, and the Japanese adorn them on the outside with fine, elegantly wrought gold and keep them in brocade cases.

[20] Many of the important pottery traditions that spread into the Oceania region had their counterparts in the Philippines including the well-known Lapita culture.

This quote from American anthropologist Wilhelm Solheim illustrates the matter: I hypothesize that the Sa-huynh Kalanay and Lapita pottery traditions had a common origin somewhere in the Palawan-Sarawak-Sulu Sea-Sulawesi area and that it was at this point in time and space that a second and main stage in the spread of the Austronesian languages began.

De Morga mentions that Japanese traders were still coming in large numbers for these jars during his time, and that they were willing to spend great sums for them.

Apparently work on these jars continued in the North, possibly among the unconquered Igorots, for De Morga had no knowledge of such current production.

A statue of daimyō Ukon Takayama, who was exiled to the Philippines in 1614 because he refused to disavow his Christian beliefs, stands a patch of land across the road from the Post Office building in the Paco, Manila.

This hybrid group tend to be re-assimilated either into the Filipino or the Japanese communities, and thus no accurate denominations could be established, though their estimates range from 100,000 to 200,000.

Many were killed or expelled after World War II because of their alleged collaboration with the Imperial Japanese Army (mostly as translator).

[27] During this period, Japanese laborers were also brought in to build the Benguet Road (Kennon Road) to Baguio, but eventually after the project, many moved to work in abaca plantations in Davao, where Davao soon became dubbed as Davaokuo (in Philippine and American media) or (in Japanese: 小日本國「こにっぽんこく」, romanized: Ko Nippon Koku, lit.

[28][29] Prominent scholars and historian like Lydia Yu-Jose and Macario Tiu wrote extensively on the lively presence of Japanese migrants in pre-war Davao due to its noticeably thriving local economy predicated by a huge concentration of rubber, copra, and hemp plantations.

Similar organizations exist in the Philippines to commemorate and signify the historical settlement of Japanese Filipinos in the region.

It affirmed the Tokyo District Court judgment that "the marital status of the parents had no bearing on nationality, and that denying the children citizenship violated constitutional guarantees of equality for all.